Mother and child characteristics.

<p>Mother and child characteristics.</p

Rate of positive PCR by time period of DBS collection and by children's age group.

<p>Rate of positive PCR by time period of DBS collection and by children's age group.</p

Estimated Adjusted Odds Ratio and 95% Confidence Intervals for ARV exposures and non ARV-related parameters.

<p>Estimated Adjusted Odds Ratio and 95% Confidence Intervals for ARV exposures and non ARV-related parameters.</p

Rate of positive PCR by “who received ARV drugs”, mothers' ARV regimen, mothers' age at the time of delivery, HIV status disclosure, and by children's age group.

<p>Rate of positive PCR by “who received ARV drugs”, mothers' ARV regimen, mothers' age at the time of delivery, HIV status disclosure, and by children's age group.</p

Rate of positive PCR by feeding mode, place and type of delivery, and by children's age group.

*<p>This means the child was still breastfeeding at the time of dried blood spot (DBS) collection for PCR.</p>**<p>This means the child was breastfed but stopped by the time of DBS collection. The timing when breastfeeding was stopped was not specified.</p